Universal serial bus (USB) plug system



This application is related to U.S. Utility patent application Ser. No. 14/667,570, titled Universal Serial Bus (USB) Port And Plug Systems and filed simultaneously herewith, and U.S. Design patent application Ser. No. 29/521,562, titled Universal Serial Bus (USB) Port System and filed simultaneously herewith.

This invention was supported by the National Institute of Health, Grant No. R121-CA-120128, and the National Science Foundation, Grant No. BES-03-48204. The United States Government has certain rights in the invention.

FIG. 1 shows a front perspective view of the USB plug system;

FIG. 2 shows a back perspective view thereof;

FIG. 3 shows a back view thereof;

FIG. 4 shows a side view thereof;

FIG. 5 shows a top view thereof; and,

FIG. 6 shows front view thereof.

The broken lines in the drawings illustrate unclaimed portions of the USB plug system and form no part of the claimed design. 

CLAIM We claim the ornamental design for the universal serial bus (USB) plug system, as shown and described. 